The Simpson Titen 1/4 in. x 2-3/4 in. Phillips Flat-Head Stainless Steel Concrete and Masonry Screw is a mechanical anchor engineered by Simpson Strong-Tie for reliable, no-expansion-anchor installation into concrete, brick, grout-filled CMU, hollow-block masonry, and select preservative-treated wood. Fabricated from Type 410 stainless steel with a zinc-plated protective overcoat, this concrete screw threads directly into a pre-drilled hole to deliver secure, repeatable holding power in environments where a medium level of corrosion resistance is required - making it a trusted choice for specifiers and contractors on demanding structural and finish applications alike.

Key Features

• Type 410 stainless steel construction with zinc-plated protective overcoat - delivers a medium level of corrosion resistance suited for interior and exterior environments where standard carbon steel fasteners fall short.
• Phillips flat-head drive style - sits flush with the substrate surface after installation, providing a clean, low-profile finish for electrical boxes, light fixtures, and similar component attachments.
• Compatible with concrete, brick, grout-filled CMU, hollow-block masonry, and some preservative-treated wood - broad base-material versatility reduces the need to stock multiple anchor types across different job conditions.
• Requires a 3/16 in. drill bit - one appropriately sized bit is included in each box - so installers can begin work immediately without sourcing a separate bit, saving time and reducing the risk of using an incorrect size.
• Direct-thread installation into a pre-drilled hole - eliminates the need for a separate expansion anchor component, simplifying the fastening process and speeding up installation on high-volume projects.
• Designed and backed by Simpson Strong-Tie - a brand specifiers and contractors rely on for consistent performance under demanding structural applications.

Why This Product

• Corrosion resistance where it counts - Type 410 stainless steel combined with a zinc-plated protective overcoat makes this masonry screw appropriate for medium-corrosion environments where uncoated fasteners would degrade prematurely, protecting the integrity of the connection over time.
• One anchor, multiple base materials - the ability to fasten into concrete, brick, grout-filled and hollow CMU, and some preservative-treated wood means this single concrete screw can carry through a wider range of site conditions without switching products.
• Ready-to-install right out of the box - the inclusion of a correctly sized 3/16 in. drill bit with every box means no additional tool procurement is needed, keeping installation straightforward and reducing the chance of mis-sized pilot holes.
• Trusted mechanical anchor design from Simpson Strong-Tie - direct-thread engagement without an expansion sleeve means faster installation and the confidence of a fastening system engineered specifically for concrete and masonry structural applications.

Specifications

• Model Number: TTN25234PFSS
• Diameter: 1/4 in.
• Length: 2-3/4 in.
• Drill Bit Diameter: 3/16 in.
• Material: Type 410 Stainless Steel
• Finish: Type 410 Stainless Steel, Zinc Plated with Protective Overcoat
• Head Style: Phillips Flat-Head

Approved Applications

• Concrete base material
• Brick base material
• Grout-filled CMU (concrete masonry unit) applications
• Hollow-block masonry applications
• Some preservative-treated wood applications
• Attaching components to concrete and masonry in medium corrosion-resistance environments (e.g., electrical boxes, light fixtures)

What's Included

Each pack contains (100) Stainless Steel Concrete Screws, One drill bit is included in each box.

Frequently Asked Questions

What base materials are the Simpson TTN25234PFSS Titen screws compatible with?

The Titen screws are suitable for use in concrete, brick, grout-filled CMU, and hollow-block applications. They are also suitable for some preservative-treated wood applications.

What drill bit size is required for installing these Titen screws?

A 3/16 in. diameter drill bit is required. Conveniently, one appropriately sized drill bit is included with each box.

Why are these screws made from Type 410 stainless steel?

Type 410 stainless steel provides a medium level of corrosion resistance, making these screws well-suited for environments where enhanced protection against corrosion is needed compared to standard carbon steel fasteners. They also feature a zinc-plated protective overcoat for additional durability.

What is the head style of the TTN25234PFSS, and what is the advantage of a flat-head design?

The TTN25234PFSS features a Phillips flat-head design, which allows the screw head to sit flush with or below the surface of the material being fastened. This provides a clean, low-profile finish that is ideal for applications where a protruding fastener head would be undesirable.

Note: Product dimensions and/or thread length may differ from picture. Please see the item description above for specifications.